Pyrilamine/Caffeine/Acetaminophen

**Semantic type:** Pharmacologic Substance

**Definition:** A combination preparation containing pyrilamine, caffeine and acetaminophen. Pyrilamine is an ethylenediamine antihistamine that blocks H1 receptors and exerts local anesthetic, sedative and mild analgesic activities. Caffeine is a central nervous system stimulant. Acetaminophen possesses analgesic and antipyretic effects. This preparation is used for the relief of premenstrual and menstrual symptoms.

**Synonyms:** - Midol Menstrual